Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6886688 | Security package | Philip K. Sykes, Thomas Leo Mauren | 2005-05-03 |
| D357543 | Base for a portable building | Ronald J. Holmstadt, Douglas E. Loebertmann | 1995-04-18 |
| D351222 | Toilet bowl | — | 1994-10-04 |
| D337831 | Portable restroom | George E. McNamara, Ronald J. Holmstadt | 1993-07-27 |